Patented April 19, 1904
If an object in your hands says PAT. APRIL 19, 1904, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 757,741 | COIN-DETECTOR | Frederick G. Hartell | Chicago, Illinois |
The Counterfeit Coin Detector Patent Archive
Every device ever patented to catch a bad coin
If an object in your hands says PAT. APRIL 19, 1904, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 757,741 | COIN-DETECTOR | Frederick G. Hartell | Chicago, Illinois |